U're supposed to "treat" the clay pot by applying oil to it and leaving it out in the sun for sumtime.. then wash it really well.
Marinate the chicken with 3 tablespoon yoghurt, haldi, gin/gar paste and red chilli powder.
Heat oil and add to it sliced onions and tomato's when the oil seperates add the marinated chicken and cook till done.. add zeera pwd, dhania pwd and salt. Add fresh cilantro/dhania and "kasuri methi" (dried, 1 tsp) cover and cook on "dum" for 10 mins.
what do you mean by "dum"???